sqlserver 字符串split

select value from TF_NJVALUES('3C457A2D-188B-4D99-A822-2968054E1FB8,3C457A2D-188B-4D99-A822-2968054E1FB8')
CREATE  FUNCTION TF_NJVALUES  

(  

 @P0 varchar(max) --需要截取的字符  

)  

RETURNS @OUT_TABLE TABLE(value VARCHAR(max))  

AS  

BEGIN  

 DECLARE @SQL varchar(max),

         @output varchar(50)

 set @P0=case when RIGHT(@P0,1)=',' then @P0 else @P0+',' end

 while CHARINDEX(',',@P0)>0

 begin

    set @output=LEFT(@P0,CHARINDEX(',',@P0)-1)

    INSERT INTO @OUT_TABLE(value)  

    SELECT RTRIM(LTRIM(@output))

    set @P0=right(@P0,len(@P0)-CHARINDEX(',',@P0))

 end

 return  

END